Nacs socket with an ip67 protection rating

Abstract

This utility model discloses a NACS socket with an IP67 protection rating. The IP67 NACS socket includes a main end cover with an LED light assembly. A socket body is disposed inside the main end cover. A socket end cover with a sealing gasket is disposed on the side of the socket body near the main end cover. One side of the sealing gasket abuts against the socket end cover and can abut against a pin inserted into the socket to achieve a seal. A sealing ring one is disposed at the connection point between the signal terminal and the socket body, with one side abutting against the signal terminal and the other side abutting against the socket body. A sealing ring two is disposed between the socket bottom cover and the grounding terminal, with one side abutting against the grounding terminal and the other side abutting against the socket bottom cover. A sealing ring three is disposed between the socket body and the socket end cover, with one side abutting against the socket body and the other side abutting against the socket bottom cover. A sealing ring four is disposed between the socket bottom cover and the socket body, with one side abutting against the socket bottom cover and the other side abutting against the socket body.

Description

Technical Field

[0001] This utility model belongs to the field of socket technology, and more specifically, relates to a NACS socket with an IP67 protection rating. Background Technology

[0002] With the rapid development of the global new energy vehicle industry, the protection performance of electric vehicle charging interfaces has become a core indicator for ensuring charging safety and product reliability. In outdoor applications, charging interfaces must withstand complex environments such as rain, dust, and salt spray corrosion. Therefore, the IP (Ingress Protection) protection rating standards established by the International Electrotechnical Commission (IEC) have become the core basis for industry technical specifications. Among them, the IP67 rating requires complete protection against dust ingress (IP6X) and the ability to withstand brief immersion in 1 meter of water for 30 minutes without performance failure (IPX7). This standard has become a mandatory requirement for mainstream new energy vehicle charging interfaces. In existing technologies, Tesla's North American Charging Standard (NACS) interface achieves integrated AC / DC charging through innovative design, with a maximum voltage of 1000V DC and a current carrying capacity of 400A DC, significantly improving charging efficiency. Regarding the sealing structure, the NACS interface employs a two-part shell design, using ultrasonic welding to achieve conductor connections, and forming protection through terminal plastic coating, internal adhesive filling, and a combination of multiple sealing rings. For example, the power terminals are partially plastic-coated and fitted with sealing rings, with the temperature sensor integrated into the through-hole of the plastic coating, secured with screws for foolproof design; the shielding layer is combined with the sealing rings through a pressing process, ensuring both electromagnetic shielding and waterproof performance meet standards. Furthermore, a sealing ring is placed at the joint between the upper and lower covers of the socket, and the sealing space is filled using an injection molding process, forming a multi-level barrier.

[0003] However, existing technologies still have the following limitations: First, the sealing method relies on the glue injection process, which requires high manufacturing precision and may lead to glue slippage or sealing ring aging after long-term use; Second, salt spray corrosion tests show that some products exhibit metal corrosion in a 48-hour salt spray environment, indicating that traditional surface treatment processes (such as ordinary metal coatings) are not suitable for coastal or high-humidity areas; Third, the assembly process is highly complex, involving multiple steps such as ultrasonic welding, screw tightening, and sealing ring positioning, which may affect production efficiency and cost control.

[0004] To address the above problems, this invention proposes a NACS socket with an IP67 protection rating. Utility Model Content

[0005] One objective of this invention is to achieve a more reliable internal cavity seal by optimizing the sealing structure and process.

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a NACS socket with an IP67 protection level.

[0007] To achieve the aforementioned utility model objectives, the technical solution adopted by this utility model includes a main end cover, on which an LED light assembly for detecting whether the socket has entered the charging state is provided; a socket body is provided inside the main end cover, and a socket end cover with a sealing gasket is provided on the side of the socket body near the main end cover, one side of the sealing gasket abutting against the socket end cover and being able to abut against the pin inserted into the socket to achieve a seal; a signal terminal, a DC terminal and a ground terminal are provided inside the socket body, and a sealing ring one is provided where the signal terminal connects to the socket body, with one side abutting against the signal terminal and the other side abutting against the socket body; a sealing ring two is provided between the socket bottom cover and the ground terminal, with one side abutting against the ground terminal and the other side abutting against the socket bottom cover; a sealing ring three is provided between the socket body and the socket end cover, with one side abutting against the socket body and the other side abutting against the socket bottom cover; and a sealing ring four is provided between the socket bottom cover and the socket body, with one side abutting against the socket bottom cover and the other side abutting against the socket body.

[0008] Optionally, one side of the socket end cover is snapped onto the socket bottom cover, so that the relative positions of the socket bottom cover and the socket end cover remain unchanged.

[0009] Optionally, the snap-fit ​​structure between the socket end cover and the socket bottom cover is a snap-fit ​​and slot-fit structure.

[0010] Optionally, sealing ring 1, sealing ring 2, sealing ring 3, and sealing ring 4 are all made of silicone. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a front view of a NACS socket with an IP67 protection rating according to this utility model; Figure 2 This is a cross-sectional schematic diagram of the protruding terminal of a NACS socket with an IP67 protection rating according to this utility model; Figure 3 This is a cross-sectional schematic diagram of the protruding sealing ring of a NACS socket with an IP67 protection rating according to this utility model.

[0013] Figure label: 11. Main body end cap; 12. LED light assembly; 21. Socket body; 22. Socket end cap; 23. Sealing gasket; 24. Socket bottom cover; 31. Signal terminal; 32. DC terminal; 33. Grounding terminal; 41. Sealing ring one; 42. Sealing ring two; 43. Sealing ring three; 44. Sealing ring four; 45. Sealing ring five; In the accompanying drawings, the same parts are labeled with the same reference numerals; the drawings are not drawn to scale. Detailed Implementation

[0014] In view of the shortcomings of the prior art, the inventors of this case, through long-term research and extensive practice, have proposed the technical solution of this utility model. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples.

[0015] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0017] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0018] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0019] This utility model embodiment is intended to introduce and explain the structural composition of a NACS socket with an IP67 protection level and the cooperation relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components in the NACS socket with an IP67 protection level in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0020] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0021] Example 1 Please see Figures 1 to 3 A NACS socket with an IP67 protection rating includes a main end cover 11, on which an LED light assembly 12 is provided for detecting whether the socket has entered the charging state.

[0022] Please see Figures 1 to 3 The main body end cap 11 is provided with a socket body 21; a socket end cap 22 is provided on the side of the socket body 21 near the main body end cap 11, and a sealing gasket 23 is provided on the socket end cap 22. One side of the sealing gasket 23 abuts against the socket end cap 22; the sealing gasket 23 can abut against the pin inserted into the socket to achieve a seal.

[0023] Please see Figures 1 to 3The socket body 21 is provided with a signal terminal 31, a DC terminal 32 and a grounding terminal 33; a sealing ring 41 is provided at the connection between the signal terminal 31 and the socket body 21, one side of the sealing ring 41 abuts against the signal terminal 31 and the other side of the sealing ring 41 abuts against the socket body 21; thus achieving a seal between the signal terminal 31 and the socket body 21.

[0024] Please see Figures 1 to 3 A socket end cover 22 is provided on one side of a socket bottom cover 24. One side of the socket end cover 22 is snapped into the socket bottom cover 24. The relative position of the socket bottom cover 24 and the socket end cover 22 is fixed and does not change. A sealing ring 42 is provided between the socket bottom cover 24 and the grounding terminal 33. One side of the sealing ring 42 abuts against the grounding terminal 33, and the other side of the sealing ring 42 abuts against the socket bottom cover 24.

[0025] Please see Figures 1 to 3 A sealing ring 43 is provided between the socket body 21 and the socket end cover 22. One side of the sealing ring 43 abuts against the socket body 21, and the other side of the sealing ring 43 abuts against the socket bottom cover 24.

[0026] Please see Figures 1 to 3 A sealing ring 44 is provided between the socket bottom cover 24 and the socket body 21. One side of the sealing ring 44 abuts against the socket bottom cover 24, and the other side of the sealing ring 44 abuts against the socket body 21.

[0027] Please see Figures 1 to 3 A sealing ring 45 is provided between the grounding terminal 33 and the socket bottom cover 24. One side of the sealing ring 45 abuts against the grounding terminal 33, and the other side of the sealing ring 45 abuts against the socket bottom cover 24.

[0028] The advantages of this utility model: 1. All-weather environmental adaptability: The double-layer protective structure formed by the main end cover 11 and the socket end cover 22 effectively blocks the intrusion of rainwater, sand and mud, and can still maintain normal operation in open parking lots or sandstorm areas; the dynamic sealing design of the sealing gasket 23 and the pin ensures that the protection level is maintained continuously during frequent plugging and unplugging operations, adapting to the high-frequency use scenarios of public charging stations.

[0029] 2. Status visualization guarantee: The LED light assembly 12 built into the main body end cover 11 provides clear status indication. The charging connection status can be clearly identified in strong light or nighttime environments. The lighting effect design takes energy-saving needs into account. In standby mode, it automatically enters low power consumption mode to extend the overall service life.

[0030] 3. Electrical system reliability: The sealing ring 41 structure used at the signal terminal 31 effectively prevents the risk of short circuit caused by condensation rising along the terminal. The sealing ring 42 between the grounding terminal 33 and the socket bottom cover 24 forms an independent protection zone, avoiding electrochemical corrosion caused by moisture in the grounding circuit.

[0031] 4. Mechanical structural stability: The snap-fit ​​design between the socket end cover 22 and the bottom cover achieves precise positioning and maintains structural integrity when subjected to vehicle vibration or human collision. The sealing rings 3 and 43 set between the socket body 21 and the bottom cover form a double-insurance sealing system, which can maintain protective performance even if a single layer of seal fails.

[0032] 5. Ease of maintenance: The modular sealing component design supports quick replacement, and the entire socket body does not need to be disassembled during maintenance. Each of the 21 sealing elements is made of weather-resistant materials, maintaining elastic deformation capability in a temperature range of -30℃ to 85℃.

[0033] 6. Compatibility and expansion: The standard NACS interface specification ensures seamless integration with mainstream electric vehicle charging systems, and the protective structure reserves space for intelligent upgrades, allowing the integration of temperature sensors or electronic lock functions without affecting the protection level.

[0034] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A NACS socket with an IP67 protection rating, characterized in that: The device includes a main end cap (11), on which an LED light assembly for detecting whether the socket is in a charging state is provided; a socket body (21) is provided inside the main end cap (11), and a socket end cap (22) with a sealing gasket (23) is provided on the side of the socket body (21) near the main end cap (11). One side of the sealing gasket (23) abuts against the socket end cap (22) and can abut against the pin inserted into the socket to achieve a seal; a signal terminal (31) and a DC terminal are provided inside the socket body (21). A sealing ring 1 (41) is provided at the connection between the terminal and the grounding terminal (33), the signal terminal (31) and the socket body (21), with one side abutting the signal terminal (31) and the other side abutting the socket body (21); a sealing ring 2 (42) is provided between the socket bottom cover (24) and the grounding terminal (33), with one side abutting the grounding terminal (33) and the other side abutting the socket bottom cover (24); a sealing ring 3 (43) is provided between the socket body (21) and the socket end cover (22), with one side abutting the socket body (21) and the other side abutting the socket bottom cover (24); a sealing ring 4 (44) is provided between the socket bottom cover (24) and the socket body (21), with one side abutting the socket bottom cover (24) and the other side abutting the socket body (21).

2. The NACS socket with an IP67 protection rating according to claim 1, characterized in that: The main body and the main body end cap (11) are internally sealed.

3. A NACS socket with an IP67 protection rating according to claim 1, characterized in that: The socket end cover (22) is snapped onto the socket bottom cover (24) on one side, so that the relative position of the socket bottom cover (24) and the socket end cover (22) remains unchanged.

4. A NACS socket with an IP67 protection rating according to claim 1, characterized in that: The socket end cover (22) and the socket bottom cover (24) have a snap-fit ​​structure that combines a snap and a slot.

5. A NACS socket with an IP67 protection rating according to claim 1, characterized in that: Sealing ring 1 (41), sealing ring 2 (42), sealing ring 3 (43), and sealing ring 4 (44) are all made of silicone.

Images